City Schools has developed this In-Person Air Quality Dashboard to provide frequent updates about the air ventilation plan for schools and learning spaces that support in-person learning in buildings managed by City Schools The dashboard includes updates about the installation of air filters and air purifiers and other important information. (NOTE Charter School staff and families: If your school operates from a non-City Schools-managed building, your school’s indoor air quality plan is on the dashboard. However, please contact the school for an update on the status of that plan.)
The district plans to complete the installation of upgraded air filters and air purifiers before schools open for the second semester of the 2020-2021 school year. City Schools is proceeding aggressively to ensure that all identified instructional spaces will be serviced by an upgraded filter or air purifiers. Where filter upgrades are not complete, air purifiers are in our inventory to support those spaces until filter upgrades are complete. Any area not being serviced by an upgraded filter or air purifiers will not be used for instruction.
Buildings and spaces used for in-person learning are ready for students and staff when:
- MERV 13 FILTER UPGRADE COMPLETE in a building where the existing mechanical ventilation system CAN operate with a MERV 13 filter (a higher efficiency filter)
- MERV 13 FILTER UPGRADE COMPLETE in a building where the existing mechanical ventilation system in an individual space CANNOT operate with a MERV 13 filter (a higher efficiency filter) and an air purifier is required and installed
- MERV 13 FILTER UPGRADE IN PROGRESS in a building and an air purifier is installed in that instructional space until the filter upgrade is complete.
- AIR PURIFIER INSTALLED in instructional spaces.
Air Purifier installation is happening in pre-K-8 buildings February 5th – February 19th and in high schools February 22nd – March 5th. If the schedule must be adjusted, the weeks of February 22nd and March 8th will be used to ensure that all identified spaces are ready to receive students. MERV 13 filter installation is ongoing and occurs based on when filters are received in the warehouse from vendors. Schools that are being upgraded with MERV 13 filters will be given air purifiers for temporary use until their filter upgrades are complete.
The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) encourages combinations of higher efficiency mechanical filters and HEPA air purifiers to help mitigate infectious aerosol transmission.
Each building was assessed to certify that it had a functioning mechanical ventilation system that can receive the higher-efficiency MERV 13 filter without adversely impacting system operations. Where this is not possible, room measurements were taken to provide sufficient portable HEPA air purifiers that achieve MERV 13 or better levels of performance.
Building ventilation is only one part of a comprehensive mitigation strategy that includes all five of the Center for Disease Control's (CDC) recommended mitigation strategies for in-person instruction:
- Consistent and correct use of masks
- Social distancing to the largest extent possible
- Hand hygiene and respiratory etiquette
- Cleaning and disinfection
- Contact tracing in collaboration with the local health department